18990065

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4463}}^1$

素因数の和:4528

約数の個数: 16

約数和(自身を含む): 24427008

約数和(自身を除く): 5436943

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4463, 22315, 102649, 165131, 513245, 825655, 3798013, 18990065]

約数ペア:

[(1, 18990065), (5, 3798013), (23, 825655), (37, 513245), (115, 165131), (185, 102649), (851, 22315), (4255, 4463)]